"Fri, 23 Jan 1970 18:03:40"

Convert date and time to unixtime.

1965820

Another datetime format string at UTC

YYYYMMDD
19700123

Only TIME
18:03:40

General datetime
1970-01-23 18:03:40Z

For Database
1970-01-23 18:03:40

For HTTP1.1
Fri, 23 Jan 1970 18:03:40 GMT


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